Mrs Treesa Williamson, CRNP - Medicare Nurse Practitioner in Philadelphia, PA

Mrs Treesa Williamson, CRNP is a medicare enrolled "Nurse Practitioner - Psychiatric/mental Health" in Philadelphia, Pennsylvania. Her current practice location is 161 Cecil B Moore Ave Apt 204, Philadelphia, Pennsylvania. You can reach out to her office (for appointments etc.) via phone at (215) 585-2144.

Mrs Treesa Williamson is licensed to practice in Pennsylvania (license number SP026787) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1598159824.

Contact Information

Mrs Treesa Williamson, CRNP
161 Cecil B Moore Ave Apt 204,
Philadelphia, PA 19122-3243
(215) 585-2144
Not Available

Map and Direction




Provider's Profile

Full NameMrs Treesa Williamson
GenderFemale
SpecialityNurse Practitioner - Psychiatric/mental Health
Location161 Cecil B Moore Ave Apt 204, Philadelphia, Pennsylvania
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1598159824
  • Provider Enumeration Date: 03/25/2015
  • Last Update Date: 07/28/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9638476039
  • Enrollment ID: I20160330001724

Medical Identifiers

Medical identifiers for Mrs Treesa Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598159824NPI-NPPES
1031853220001MedicaidPA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner SP014874 (Pennsylvania)Secondary
363LP0808XNurse Practitioner - Psychiatric/mental Health SP026787 (Pennsylvania)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Mrs Treesa Williamson allows following entities to bill medicare on her behalf.
Entity NameDelaware County Professional Services, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952485864
PECOS PAC ID: 2668436692
Enrollment ID: O20041118000546
Entity NamePsychiatry Today Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891042651
PECOS PAC ID: 7911158282
Enrollment ID: O20121114000124
Entity NameArs Treatment Centers Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346731171
PECOS PAC ID: 0042568131
Enrollment ID: O20180807000056
Entity NameBrightside Medical Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1508325184
PECOS PAC ID: 4082089461
Enrollment ID: O20230418000266

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Mrs Treesa Williamson is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Mrs Treesa Williamson, CRNP
6 Dickinson Dr Ste 107,
Chadds Ford, PA 19317-9689

Ph: (610) 361-9500
Mrs Treesa Williamson, CRNP
161 Cecil B Moore Ave Apt 204,
Philadelphia, PA 19122-3243

Ph: (215) 585-2144

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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